1 | /* |
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2 | * setjmp for the Blackfin processor |
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3 | * |
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4 | * Copyright (C) 2006 Analog Devices, Inc. |
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5 | * |
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6 | * The authors hereby grant permission to use, copy, modify, distribute, |
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7 | * and license this software and its documentation for any purpose, provided |
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8 | * that existing copyright notices are retained in all copies and that this |
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9 | * notice is included verbatim in any distributions. No written agreement, |
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10 | * license, or royalty fee is required for any of the authorized uses. |
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11 | * Modifications to this software may be copyrighted by their authors |
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12 | * and need not follow the licensing terms described here, provided that |
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13 | * the new terms are clearly indicated on the first page of each file where |
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14 | * they apply. |
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15 | */ |
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16 | |
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17 | |
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18 | #define _ASM |
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19 | #define _SETJMP_H |
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20 | |
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21 | .text; |
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22 | .align 4; |
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23 | .globl _setjmp; |
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24 | .type _setjmp, STT_FUNC; |
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25 | |
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26 | _setjmp: |
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27 | [--SP] = P0; /* Save P0 */ |
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28 | P0 = R0; |
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29 | R0 = [SP++]; |
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30 | [P0 + 0x00] = R0; /* Save saved P0 */ |
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31 | [P0 + 0x04] = P1; |
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32 | [P0 + 0x08] = P2; |
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33 | [P0 + 0x0C] = P3; |
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34 | [P0 + 0x10] = P4; |
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35 | [P0 + 0x14] = P5; |
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36 | |
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37 | [P0 + 0x18] = FP; /* Frame Pointer */ |
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38 | [P0 + 0x1C] = SP; /* Stack Pointer */ |
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39 | |
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40 | [P0 + 0x20] = P0; /* Data Registers */ |
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41 | [P0 + 0x24] = R1; |
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42 | [P0 + 0x28] = R2; |
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43 | [P0 + 0x2C] = R3; |
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44 | [P0 + 0x30] = R4; |
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45 | [P0 + 0x34] = R5; |
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46 | [P0 + 0x38] = R6; |
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47 | [P0 + 0x3C] = R7; |
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48 | |
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49 | R0 = ASTAT; |
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50 | [P0 + 0x40] = R0; |
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51 | |
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52 | R0 = LC0; /* Loop Counters */ |
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53 | [P0 + 0x44] = R0; |
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54 | R0 = LC1; |
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55 | [P0 + 0x48] = R0; |
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56 | |
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57 | R0 = A0.W; /* Accumulators */ |
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58 | [P0 + 0x4C] = R0; |
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59 | R0 = A0.X; |
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60 | [P0 + 0x50] = R0; |
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61 | R0 = A1.W; |
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62 | [P0 + 0x54] = R0; |
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63 | R0 = A1.X; |
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64 | [P0 + 0x58] = R0; |
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65 | |
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66 | R0 = I0; /* Index Registers */ |
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67 | [P0 + 0x5C] = R0; |
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68 | R0 = I1; |
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69 | [P0 + 0x60] = R0; |
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70 | R0 = I2; |
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71 | [P0 + 0x64] = R0; |
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72 | R0 = I3; |
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73 | [P0 + 0x68] = R0; |
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74 | |
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75 | R0 = M0; /* Modifier Registers */ |
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76 | [P0 + 0x6C] = R0; |
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77 | R0 = M1; |
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78 | [P0 + 0x70] = R0; |
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79 | R0 = M2; |
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80 | [P0 + 0x74] = R0; |
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81 | R0 = M3; |
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82 | [P0 + 0x78] = R0; |
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83 | |
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84 | R0 = L0; /* Length Registers */ |
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85 | [P0 + 0x7c] = R0; |
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86 | R0 = L1; |
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87 | [P0 + 0x80] = R0; |
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88 | R0 = L2; |
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89 | [P0 + 0x84] = R0; |
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90 | R0 = L3; |
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91 | [P0 + 0x88] = R0; |
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92 | |
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93 | R0 = B0; /* Base Registers */ |
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94 | [P0 + 0x8C] = R0; |
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95 | R0 = B1; |
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96 | [P0 + 0x90] = R0; |
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97 | R0 = B2; |
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98 | [P0 + 0x94] = R0; |
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99 | R0 = B3; |
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100 | [P0 + 0x98] = R0; |
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101 | |
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102 | R0 = RETS; |
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103 | [P0 + 0x9C] = R0; |
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104 | |
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105 | R0 = 0; |
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106 | |
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107 | RTS; |
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108 | .size _setjmp, .-_setjmp; |
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